12 messages in org.freebsd.freebsd-stableRe: okay, I WILL get out and help push | From | Sent On | Attachments |
|---|---|---|
| Drew Derbyshire - UUPC/extended software support | Mar 20, 1998 6:04 am | |
| Eivind Eklund | Mar 20, 1998 7:54 am | |
| Jordan K. Hubbard | Mar 20, 1998 8:25 am | |
| Matthew D. Fuller | Mar 20, 1998 8:44 am | |
| Eivind Eklund | Mar 20, 1998 11:03 am | |
| John Hay | Mar 20, 1998 11:14 am | |
| Benjamin Greenwald | Mar 20, 1998 11:29 am | |
| Atipa | Mar 20, 1998 11:37 am | |
| Benjamin Greenwald | Mar 20, 1998 12:37 pm | |
| Eivind Eklund | Mar 20, 1998 1:04 pm | |
| Atipa | Mar 20, 1998 2:35 pm | |
| Daniel O'Connor | Mar 22, 1998 4:12 pm |
| Subject: | Re: okay, I WILL get out and help push | |
|---|---|---|
| From: | Benjamin Greenwald (be...@lcs.mit.edu) | |
| Date: | Mar 20, 1998 12:37:45 pm | |
| List: | org.freebsd.freebsd-stable | |
I believe "Boomerang" is the name of the 3C90? chip... the new one. The "Vortex" is the 3C59? architecture whose interface is very similar to the 3C509 (hence the lineage of the current vx code) which I would probably agree was a lemon. However, supporting the 3C59? cards with a driver focused on the 3C90? shouldn't degrade the later's performance and with little work should improve the performance of the former. You just use the programmed I/O interface as in the current vx driver for the older cards, and something fancy for the new ones. The Linux driver does exactly this, a driver I've had good luck with on both Vortex and Boomerang cards. This will have the added benefit of making the new driver a drop in replacement for the old.
However, if in the course of development I find that supporting the older PIO interface is going to degrade the bus-mastering interface performance, don't think for a second I won't drop it in the bit-bucket.
-Ben
As to the driver issue, I've just begun developing a new vx driver which wi ll use the advanced features of the Boomerang cards(3C90?), and stay compatibl e with Vortex (3C59?).
-Ben
Does anybody still use the Boomerang? It has been discontinued for over 1.5 years, and never really caught on. It would be a shame to compromise performance over a lemon card from 3 years ago...
Kevin
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